李庚
5 months ago
parent
05764464bd
commit
368a6a6487
@ -1,110 +1,111 @@
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package java6201.lesson03;
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import javafx.application.Application;
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import javafx.geometry.Insets;
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import javafx.geometry.Pos;
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import javafx.scene.Scene;
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import javafx.scene.control.Alert;
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import javafx.scene.control.Alert.AlertType;
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import javafx.scene.control.Button;
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import javafx.scene.control.Label;
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import javafx.scene.control.TextField;
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import javafx.scene.layout.GridPane;
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import javafx.stage.Stage;
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public class system extends Application {
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private TextField inputTextField;
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private TextField sourceBaseTextField;
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private TextField targetBaseTextField;
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private Label resultLabel;
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@Override
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public void start(Stage primaryStage) {
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primaryStage.setTitle("Base Converter");//
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GridPane grid = new GridPane();
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grid.setAlignment(Pos.CENTER);
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grid.setPadding(new Insets(10));
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grid.setVgap(8);//
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grid.setHgap(10);
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Label inputLabel = new Label("输入数字:");//
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inputTextField = new TextField();
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Label sourceBaseLabel = new Label("当前进制 (2-16):");
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sourceBaseTextField = new TextField();
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sourceBaseTextField.setText("10"); // Default to decimal
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Label targetBaseLabel = new Label("目标进制 (2-16):");
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targetBaseTextField = new TextField();
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targetBaseTextField.setText("2"); // Default to binary
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Button convertButton = new Button("确认");
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resultLabel = new Label();
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grid.add(inputLabel, 0, 0);
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grid.add(inputTextField, 1, 0);
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grid.add(sourceBaseLabel, 0, 1);
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grid.add(sourceBaseTextField, 1, 1);
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grid.add(targetBaseLabel, 0, 2);
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grid.add(targetBaseTextField, 1, 2);
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grid.add(convertButton, 1, 3);
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grid.add(resultLabel, 1, 4);
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convertButton.setOnAction(event -> convert());
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Scene scene = new Scene(grid, 300, 200);
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primaryStage.setScene(scene);
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primaryStage.show();
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}
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private void convert() {
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String input = inputTextField.getText();
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String sourceBaseStr = sourceBaseTextField.getText();
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String targetBaseStr = targetBaseTextField.getText();
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try {
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int sourceBase = Integer.parseInt(sourceBaseStr);
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int targetBase = Integer.parseInt(targetBaseStr);
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if (sourceBase < 2 || sourceBase > 16 || targetBase < 2 || targetBase > 16) {
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throw new IllegalArgumentException("Base must be between 2 and 16.");
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}
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long number = Long.parseLong(input, sourceBase);
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String result = convertToBase(number, targetBase);
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resultLabel.setText("Result: " + result);
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} catch (NumberFormatException e) {
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showAlert(AlertType.ERROR, "Invalid Input", "Number format error: " + e.getMessage());
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} catch (IllegalArgumentException e) {
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showAlert(AlertType.ERROR, "Invalid Input", "Illegal argument: " + e.getMessage());
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}
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}
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private String convertToBase(long number, int base) {
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if (number == 0) {
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return "0";
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}
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StringBuilder result = new StringBuilder();
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char[] digits = "0123456789ABCDEF".toCharArray();
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while (number > 0) {
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result.insert(0, digits[(int) (number % base)]);
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number /= base;
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}
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return result.toString();
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}
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private void showAlert(AlertType alertType, String title, String content) {
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Alert alert = new Alert(alertType);
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alert.setTitle(title);
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alert.setContentText(content);
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alert.setHeaderText(null);
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alert.showAndWait();
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}
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public static void main(String[] args) {
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launch(args);
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}
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}
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package java1292.lesson051292;
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import javafx.application.Application;
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import javafx.geometry.Insets;
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import javafx.geometry.Pos;
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import javafx.scene.Scene;import javafx.scene.control.Alert;
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import javafx.scene.control.Alert.AlertType;
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import javafx.scene.control.Alert;
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import javafx.scene.control.Button;
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import javafx.scene.control.Label;
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import javafx.scene.control.TextField;
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import javafx.scene.layout.GridPane;
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import javafx.stage.Stage;
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public class system extends Application {
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private TextField inputTextField;
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private TextField sourceBaseTextField;
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private TextField targetBaseTextField;
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private Label resultLabel;
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@Override
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public void start(Stage primaryStage) {
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primaryStage.setTitle("Base Converter");//
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GridPane grid = new GridPane();
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grid.setAlignment(Pos.CENTER);
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grid.setPadding(new Insets(10));
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grid.setVgap(8);//
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grid.setHgap(10);
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Label inputLabel = new Label("输入数字:");//
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inputTextField = new TextField();
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Label sourceBaseLabel = new Label("当前进制 (2-16):");
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sourceBaseTextField = new TextField();
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sourceBaseTextField.setText("10"); // Default to decimal
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Label targetBaseLabel = new Label("目标进制 (2-16):");
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targetBaseTextField = new TextField();
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targetBaseTextField.setText("2"); // Default to binary
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Button convertButton = new Button("确认");
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resultLabel = new Label();
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grid.add(inputLabel, 0, 0);
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grid.add(inputTextField, 1, 0);
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grid.add(sourceBaseLabel, 0, 1);
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grid.add(sourceBaseTextField, 1, 1);
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grid.add(targetBaseLabel, 0, 2);
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grid.add(targetBaseTextField, 1, 2);
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grid.add(convertButton, 1, 3);
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grid.add(resultLabel, 1, 4);
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convertButton.setOnAction(event -> convert());
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Scene scene = new Scene(grid, 300, 200);
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primaryStage.setScene(scene);
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primaryStage.show();
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}
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private void convert() {
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String input = inputTextField.getText();
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String sourceBaseStr = sourceBaseTextField.getText();
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String targetBaseStr = targetBaseTextField.getText();
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try {
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int sourceBase = Integer.parseInt(sourceBaseStr);
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int targetBase = Integer.parseInt(targetBaseStr);
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if (sourceBase < 2 || sourceBase > 16 || targetBase < 2 || targetBase > 16) {
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throw new IllegalArgumentException("Base must be between 2 and 16.");
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}
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long number = Long.parseLong(input, sourceBase);
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String result = convertToBase(number, targetBase);
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resultLabel.setText("Result: " + result);
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} catch (NumberFormatException e) {
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showAlert(AlertType.ERROR, "Invalid Input", "Number format error: " + e.getMessage());
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} catch (IllegalArgumentException e) {
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showAlert(AlertType.ERROR, "Invalid Input", "Illegal argument: " + e.getMessage());
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}
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}
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private String convertToBase(long number, int base) {
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if (number == 0) {
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return "0";
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}
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StringBuilder result = new StringBuilder();
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char[] digits = "0123456789ABCDEF".toCharArray();
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while (number > 0) {
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result.insert(0, digits[(int) (number % base)]);
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number /= base;
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}
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return result.toString();
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}
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private void showAlert(AlertType alertType, String title, String content) {
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Alert alert = new Alert(alertType);
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alert.setTitle(title);
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alert.setContentText(content);
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alert.setHeaderText(null);
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alert.showAndWait();
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}
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public static void main(String[] args) {
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launch(args);
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}
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}
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